Safety razor blade



1 1941- D. sTRAu s 2,258,197

SAFETY RAZOR BLADE Filed Nov. 22, 193i" with the ends of the blade.

Patented Oct. 7, 1941 UNITED STATES PATENT OFFICE 2,258,197 SAFETY RAZOR BLADE David Strauss, Rochester, N. I, asslgnor of one- 7 half to Julius Simon, Rochester, N. Y.

Application November 22, 1939, Serial No. 305,727

3 Claims. (Cl. 30-351) mitting its yielding movement toward and away from the guard.

,My above application specifically outlines a certain construction wherein the formation of the blade itself definitely enters, to a certain extent into the effective cooperation of the razor and the blade which promotes the yielding of the blade under spring tension with respect to the guard of the razor, more especially in view of the desire for a blade which might be of either the single or the double edge type.

The present application is directed particularly to the construction of the blade, and in the following description thereof particular reference is directed to the accompanying drawing, illustrating the best mode thus far devised for carrying the invention into practical effect, and forming a part of this specification.

In the drawing.

Figure 1 is a perspective view of the blade. showing the same of the double edge type.

Figure 2 is a plan or face view of the blade of Figure 1.

Figures 3 and 4 are vertical transverse sections takenthrough the blade respectively on lines 3-3 and 4-4 of Figure 2'. s

' Figure 5 is a longitudinal sectional view taken on line 5-5 of Figure 2.

Figure 6 is a. plan or face view of another modified form permitting of a single or double edge. Referring nowto these figures, the blade is generally indicated at II in- Flgur'es 1 to 5, inclusive, where it appears of the double edge type. having cutting edges H and I2 along'its opposite longitudinal edges.

At an approximately central point the blade 4 is provided with an opening I! therethrough, preferably slightly elongated in a direction parallel to the transverse axis of the blade.

At its opposite ends and intermediate its cutting eclges H and ii, the blade is provided with longitudinal recesses l4 arranged in parallel relation in pairs and spaced apart in each pair so as to form oppositely longitudinally extending fingers It whose outer ends terminate coincident It will be noted that the recesses it are ofsubstantial depth andthat by reasonthereof the fingers ii are likewise of substantially length,

the recesses being so related to the blade as a whole as to leave the fingers II comparatively thin and in the plane of the body of the blade whereby they may yield toward either of the cutting edges l I and i2. Itis to be understood that being thus thin and flexible, adapting the same to yield toward either longitudinal edge of the blade, one or both 0t which may be cutting edges, these fingers, being an integral part of the blade itself are naturally resilient since resilience is a quality of the entire blade, so that the fingers, if engaged, at their outer free ends on the supporting surface of a razor with respect to which the remainder oi the blade may shift in the plane of its body, it is obvious that a blade will be yleldingly held.

Moreover, since the flexible resilient fingers [5 at opposite ends oi the blade are located equidistant from the two longitudinal edges of the blade, the latter will be plainly reversible and may be either of the single or double edged type.

In Figure 6 I have shown a blade ill in which, by means of slotted openings N a pair of prongs or fingers. l5 are formed which extend inwardly toward one another with their inner free ends spaced apart. In this form, as in the other form, the prongs or fingers lie wholly within the limits of the blade both as regards its outer edges and its body plane.

In the operation of either of the forms of the invention as described above, the ends of the spring fingers it or It as the case may be are rigidly clamped between a pair of lugs or other holding means formed on the blade holder and the remainder of the blade is allowed to fioat" (so to speak) on the surface of the holder face plate in such a manner that when resistance is encountered by the forward edge of the blade, the blade will yield against the action of the spring fingers it or it. Thus, in a measure, the blade by its movements will simulate the touch of a barber who, in using a straight edge razor, allows his forefinger to be held against the thick edge of the blade in order to judge, through his sense of touch, the proper degree of force which should be applied to the blade when a change in shaving resistance is encountered.

What is claimed is:

1. A thin, fiat, generally rectangular, spring-, steel blade for safety razors having a centrally v disposed opening in the thereof, said blade .2 I being formed with longitudinally extending opposed and aligned fingers projecting inwardly toward the center of the blade from opposite sides each other and for their major portions bein spaced from adJacent portions oi the edges oi said opening and lying in the plane of the body oi the blade, said fingers being sufliciently marrow as to be capable of flexing in the plane of the blade and oi returning to-their' normal positiondue. to their inherent resiliency.

2. A thin, that, generally rectangular blade for safety razors Iormed of resilient material and having formed therein slotted recessesextending longitudinally inwardly from its opposite ends and arranged in pairs forming oppositely extending integral fingers lying within the outer conoi said opening, said fingers being spaced from fines of the blade and in line with the loneitudinal center-line of the letter, said fingers being sufllciently narrow as to be capable of flexing in the plane of the blade and of returning to their normal position due to their inherent resiliency.

3. A thin, fiat, generally rectangular blade for safety razorsgformed of resilient material, said blade being formed with longitudinally extending aligned fingers, said fingers being spaced from each other and for their major portions being spaced from adjacent portions of the blade and lying in the plane or the body of the blade, said fingers being sumciently narrow as to be capable of flexing in the plane of the blade and oi returning to their normal position due to their inherent resiliency.

DAVID STRAUSS. 

